Linux 安裝mysql 5.6

mysql5.6 64位 下載地址：

https://dev.mysql.com/downloads/mysql/5.5.html#downloads

解壓

[root@iZuf6e79p9plbkel7exl9kZ ~]# tar -zxvf mysql-5.6.44-linux-glibc2.12-x86_64.tar.gz

將文件拷貝到/usr/local/mysql，由於mysql文件夾還沒有創建，我們先創建一下

[root@iZuf6e79p9plbkel7exl9kZ ~]# mkdir /usr/local/mysql
[root@iZuf6e79p9plbkel7exl9kZ ~]# cp mysql-5.6.44-linux-glibc2.12-x86_64/. /usr/local/mysql -r

添加系統mysql組和mysql用戶

[root@iZuf6e79p9plbkel7exl9kZ ~]# groupadd mysql
[root@iZuf6e79p9plbkel7exl9kZ ~]# useradd -r -g mysql mysql

進入安裝mysql軟件目錄

[root@iZuf6e79p9plbkel7exl9kZ ~]# cd /usr/local/mysql

修改當前目錄擁有者爲mysql用戶

[root@iZuf6e79p9plbkel7exl9kZ mysql]# chown -R mysql:mysql ./

安裝數據庫

[root@iZuf6e79p9plbkel7exl9kZ mysql]# ./scripts/mysql_install_db --user=mysql

在執行上一步的時候要是出現如下異常的處理方法

FATAL ERROR: please install the following Perl modules before executing ./scripts/mysql_install_db:
Data::Dumper
[root@iZuf6e79p9plbkel7exl9kZ mysql]# yum install -y perl-Module-Install.noarch

在處理完上面異常後執行安裝數據庫可能會出現如下異常，解決此異常後即可正常安裝數據庫了：

[root@iZuf6e79p9plbkel7exl9kZ mysql]# ./scripts/mysql_install_db --user=mysql
Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
[root@iZuf6e79p9plbkel7exl9kZ mysql]# yum -y install libaio-devel

 

修改當前目錄擁有者爲root用戶

[root@iZuf6e79p9plbkel7exl9kZ mysql]# chown -R root:root ./

修改當前data目錄擁有者爲mysql用戶

[root@iZuf6e79p9plbkel7exl9kZ mysql]# chown -R mysql:mysql data

添加開機啓動

[root@iZuf6e79p9plbkel7exl9kZ mysql]# cp support-files/mysql.server /etc/init.d/mysql

啓動mysql服務

[root@iZuf6e79p9plbkel7exl9kZ mysql]# service mysql start

啓動mysql服務出現如下異常解決方法：

Starting MySQL.190522 15:26:24 mysqld_safe error: log-error set to '/var/log/mariadb/mariadb.log', however file don't exists. Create writable for user 'mysql'.
The server quit without updating PID file (/var/lib/mysql/i[FAILED]9plbkel7exl9kZ.pid).

解決方法，創建文件，並賦予權限

[root@iZuf6e79p9plbkel7exl9kZ mysql]# mkdir /var/log/mariadb
[root@iZuf6e79p9plbkel7exl9kZ mysql]# touch /var/log/mariadb/mariadb.log
[root@iZuf6e79p9plbkel7exl9kZ mysql]# chown -R mysql:db /var/log/mariadb/
chown: invalid group: ‘mysql:db’
[root@iZuf6e79p9plbkel7exl9kZ mysql]# chown -R root:root /var/log/mariadb/

重新啓動mysql 服務

[root@iZuf6e79p9plbkel7exl9kZ mysql]# service mysql start
Starting MySQL.                                            [  OK  ]

連接mysql出現如下異常：

[root@iZuf6e79p9plbkel7exl9kZ ~]# mysql -h127.0.0.1 -uroot -p
-bash: mysql: command not found

解決方法：

[root@iZuf6e79p9plbkel7exl9kZ bin]# ln -s /usr/local/mysql/bin/mysql /usr/bin

mysql5.6默認密碼爲空，所以不用輸入密碼，直接回車就可以了

 

設置root用戶可以遠程訪問：

mysql> use mysql;
Database changed
mysql> grant all privileges on *.* to root@'%' identified by "root@123";
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;